Charge density control for an internal combustion engine

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(11)

EP 1 387 073 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	30.06.2010 Bulletin 2010/26

(43)	Date of publication A2:
	04.02.2004 Bulletin 2004/06

(21)	Application number: 03011822.8

(22)	Date of filing: 26.05.2003

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International Patent Classification (IPC):

F02D 41/18^(2006.01)

F02D 29/06^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

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Priority:

31.07.2002 US 209630

(71)	Applicant: CATERPILLAR INC.
	Peoria IL 61629-6490 (US)

(72)	Inventors:
	Boley, William C., Caterpillar Inc. Peoria, Illinois 61629-6490 (US) Ginzel, Geoffrey D., Caterpillar Inc. Peoria, Illinois 61629-6490 (US) Winkleman, Brady L., Caterpillar Inc. Peoria, Illinois 61629-6490 (US)

(74)	Representative: Wagner, Karl H.
	Wagner & Geyer Partnerschaft Patent- und Rechtsanwälte Gewürzmühlstrasse 5 80538 München 80538 München (DE)

(54)	Charge density control for an internal combustion engine

(57) Apparatuses and methods for determining a desired charge density for an engine. A first characteristic indicative of an engine speed of the engine is determined. A second characteristic indicative of a load on the engine is determined. A value indicative of a desired charge density of a combustion mixture for the engine is determined as a function of the first and second characteristics.

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